Answer:
109,000
Step-by-step explanation:
1kg = 1000g
45 + 63 = 109
109 x 1000 = 109000
 
        
             
        
        
        
Answer:
A sample of 179 is needed.
Step-by-step explanation:
We have that to find our  level, that is the subtraction of 1 by the confidence interval divided by 2. So:
 level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of  .
.
That is z with a pvalue of  , so Z = 1.44.
, so Z = 1.44.
Now, find the margin of error M as such

In which  is the standard deviation of the population and n is the size of the sample.
 is the standard deviation of the population and n is the size of the sample.
A previous study found that for an average family the variance is 1.69 gallon?
This means that 
If they are using a 85% level of confidence, how large of a sample is required to estimate the mean usage of water?
A sample of n is needed, and n is found for M = 0.14. So






Rounding up
A sample of 179 is needed.
 
        
             
        
        
        
Compound interest is the starting amount x (1+ the interest rate as a decimal)^ the time in years=the final amount.
In your case, the equation will be $1000*(1+0.10)^how many years= the final amount.
        
             
        
        
        
Answer:
the triangles are reflected across the line y= -x 
hope this helps
Step-by-step explanation:
 
        
             
        
        
        
AWNSER: B or 54 
Hope this helps and Happy Friday!